Handmade trileaflet valved stent graft for pulmonary valve implantation

Percutaneous aortic valve replacement: computed tomography scan after valved stent implantation in human cadaver hearts.

Computed tomography scans were performed before and after aortic valve resection with consecutive implantation of a valved stent in human hearts with highly calcified aortic valves in situ (n=2). This demonstrates that the valved stent shows better fitting in the annulus after removal of the native valve.

Percutaneous valved stent implantation above the coronary ostia.

BACKGROUND In recent years, some experimental and clinical studies on transcatheter aortic valve implantation (TAVI) have been conducted. TAVI is indicated in patients with calcified pure or predominant aortic stenosis. The risk of this technique is still high. Aortic valved stent implantation above the coronary ostia might avoid blocking the coronary ostia. METHODS AND RESULTS Twenty healthy...

Stent for Percutaneous Heart Valve Implantation

The goal of this work is to develop an atraumatic stent concept for percutaneous aortic valve replacement. Shape setted braided nitinol wires, thanks to their specific geometry and elasticity, allows stent's compressibility, self deployment and aortic root preservation. Prototypes manufacturing technique and relatives constraints are presented. Performance of the obtained prototypes are evaluat...

Percutaneous Mitral Valved Stent Implantation: an in Vitro Study

Off-pump tricuspid valved stent implantation: the next step.

OBJECTIVES Off-pump transcatheter valved stent implantation could be a treatment option for patients suffering from symptomatic tricuspid regurgitation (TR) who are classified as inoperable. In this study, we present our recent short-term results of transventricular tricuspid valved stent implantation and compare different stent types for atrial anchorage. METHODS Fifteen pigs received a self...